Nginx configuration file example for Sendy (http://sendy.co/).

sendy.conf

server {
    listen      ip:port;
    server_name domain.name;
    root        root_folder;
    index       index.php index.html index.htm;

    location / {
        location = / {
            try_files $uri $uri/ /index.php?$query_string;
        }
        try_files $uri $uri/ /$uri.php?$query_string;
        
        location /l/ {
            rewrite ^/l/([a-zA-Z0-9/]+)$ /l.php?i=$1 last;
        }
        location /t/ {
            rewrite ^/t/([a-zA-Z0-9/]+)$ /t.php?i=$1 last;
        }
        location /w/ {
            rewrite ^/w/([a-zA-Z0-9/]+)$ /w.php?i=$1 last;
        }
        location /unsubscribe/ {
            rewrite ^/unsubscribe/(.*)$ /unsubscribe.php?i=$1 last;
        }
        location /subscribe/ {
            rewrite ^/subscribe/(.*)$ /subscribe.php?i=$1 last;
        }
        location ~ [^/]\.php(/|$) {
            fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
            if (!-f $document_root$fastcgi_script_name) {
                return  404;
            }
            fastcgi_pass    127.0.0.1:9005;
            fastcgi_index   index.php;
            include         /etc/nginx/fastcgi_params;
        }
    }
}

@anil1kuppa Seems like your have php-fpm issue.